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Laser Ablated Carbon Thin Film from Carbon Nanotubes and Their Property Studies
Sharon, Maheshwar,Rusop, M.,Soga, T.,Afre, Rakesh A. Korean Carbon Society 2008 Carbon Letters Vol.9 No.1
A carbon nanotube (CNT) of diameter ~20 nm has been synthesized by spray pyrolysis of turpentine oil using Ni/Fe catalyst. Pellet of CNTs has been used as a target to produce semiconducting carbon thin film of band gap 1.4 eV. Presence of oxygen pressure in the pulse laser deposition (PLD) chamber helped to control the $sp^3/sp^2$ ratio to achieve the desired band gap. Results are discussed with the help of Raman spectra, SEM TEM micrographs and optical measurements suggest that semiconducting carbon thin film deposited by PLD technique has retained its nanotubes structure except that its diameter has increased from 20 nm to 150 nm.
Laser Ablated Carbon Thin Film from Carbon Nanotubes and Their Property Studies
Maheshwar Sharon,M. Rusop,T. Soga,Rakesh A. Afre 한국탄소학회 2008 Carbon Letters Vol.9 No.1
A carbon nanotube (CNT) of diameter ~20 nm has been synthesized by spray pyrolysis of turpentine oil using Ni/Fe catalyst. Pellet of CNTs has been used as a target to produce semiconducting carbon thin film of band gap 1.4 eV. Presence of oxygen pressure in the pulse laser deposition (PLD) chamber helped to control the sp3/sp2 ratio to achieve the desired band gap. Results are discussed with the help of Raman spectra, SEM TEM micrographs and optical measurements suggest that semiconducting carbon thin film deposited by PLD technique has retained its nanotubes structure except that its diameter has increased from 20 nm to 150 nm.